| Choose the correct order of strength of following acids. |
| (i) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}COOH\] |
| (ii) \[~C{{H}_{3}}C{{H}_{2}}CH(Br)COOH\] |
| (iii) \[C{{H}_{3}}CH(Br)C{{H}_{2}}COOH\] |
| (IV) \[{{(C{{H}_{3}})}_{2}}CHCOOH\] |
A) I < II < III < IV
B) IV < I < III < II
C) IV < III < I < II
D) II < I < III < IV
Correct Answer: B
Solution :
| [b] AlkyI group with + 1 effect decreases the acidic strength whereas with - 1 effect increases the acidic strength - 1 effect decreases with distance. |
| \[\therefore \] Increasing order of acidic strength is |
| \[{{(C{{H}_{3}})}_{2}}CHCOOH<C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}COOH\] |
| \[<C{{H}_{3}}CH(Br)C{{H}_{2}}COOH<\]\[C{{H}_{3}}C{{H}_{2}}CH(Br)COOH\] |
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